Attachment-plug receptacle



Sept. 18, 1934. A. Q GAYNOR 'Re. 19,316

ATTACHMENT PLUG RECEPTACLE' Original Filed July 9, 1927 g n wanker,

Reissued Sept. 18, 1934 Ar'rAonMEN'r-PLuGnEcEP'rAcLE i Arthur C. Gaynor,

Stratford, Conn.

' .Original.No. 1,719,363, dated July 2, 1929, Serial .No. 204,601,. July 9,1927. .Applicati on.lfor

I reissue. June 29,1931, SerialNoi' 547,760

. 6'C1aims. (Cl. 173-330) 1 My invention relates :to improvementsin attachmentplug r ceptacles.

The. chief object of my invention is to provide a an attachment plug receptacle, which can be manufactured and assembled more economically sand, easilythan those of the corresponding type .heretofore; made. Y A further object of -my inven-' -tion-,is to, provide an attachmentplug receptacle, 1 -.of the duplex type, having a contact strip which y zcan.be-manufactured very cheaply and simply- Aiurther object of my invention is to provide an.

attachment plug-receptacle having a receptacles supporting yoke fastened'thereto independently of the-means for maintaining the contacts in:

;-Further objects, and-objects relatingto details 1 and economies of construction and. operation will. -,definitely-appear from the detailed descriptionto follow. in one instance, Iaccomplishthe ob- Q'-.-jects of my invention by the devices and means '5 -esetforth-in the following specification. My inven- .tion is clearly defined andpointedout in the appendedclaims. One embodiment of my invention 1 is.illustratedin the accompanying drawing, forminga part of-this specification, inwhich:

Figure l-is a plan viewof an attachment plug j receptacle; of the. duplex. type, embodying myinvention.

" Fig. 2.-is.a view of thereceptacle in side. eleva- Q-tion, a portion .of oneen'duofthe receptacle body show the connection between the two. J

Fig. 3 is a,bot,ton plan view of the receptacle, with the supporting yoke and the sheet of insulad.;1;he,, upporting yoke being broken away'to tion removed.

Fig. 4 is a perspective view of one of the contact strips, and

Fig. 5 is a detail, sectional view taken on the line 55 of Fig. 1.

In the drawing, the same reference numerals refer to the same parts throughout the several views and the sectional view is taken looking in the direction of the arrows at the ends of the section line.

I have illustrated my invention embodied in an attachment plug receptacle of the duplex type and comprising a body 10 of insulating material provided with the overhanging ledges 11 at each side of the upper face. The main portion of the body is provided with two longitudinally extend- :r55 openings 15, which communicate with the slots 13, and receive the terminal portions of the -contact 'strips. ;'Ihe-receptaclebody isalso recessed 312 116, opposite said side-openings. -The upper face of thebody 10 is pierced, at 1'7-,-to'provide blade guideways communicating-.- with .the' -con-. tact chambers 14.

Two contact-strips 18 are housed in'the slots 13 andchambers '14, as illustrated in Fig. 3. Opposite ends of-the strip.l8 are bent back upon'themselves, at .19, toform the contact fingers, which .are adaptedtoreceive'the-blades of the plugs to housed position within the body of said receptacle. --;Fig. 4, and, these ears contact with the upper walls of the contactychambers 14, adjacent the edges-of the entrance-slots-l'l. The'strip'18-is offset at 21, near thecenter thereof. to form a terminal portion whichis provided with a-tappedhole 22,-to receive the. terminal screwp23. The contact strips-are.

insertedrin position from the-lower -face, ofthe insulating body and, when in position, -the offset terminal portions 21 are located in.-the side. openings 15, so that-such terminal portions are exposed at the side of thereceptacle. The terminal screws .23 may extend..-i;nto the recesses 16, which are formedto accommodate them.

ll-tubular rivet 24' is inserted-in a central bore in;the body-of the receptacle, the upper end of this rivet being internally screw-threaded to receive a screw for attaching an escutcheon plate. Arsheet' 2 5,o finsulating'material, is applied to;th e-=lower face of the receptacle body and closes-the -slots,13 and contactgchambers 14.; Thissheet of; insulation is secured in place by upsetting or spinning over the lower end of the rivet 24, as at 26. A"

receptacle supporting yoke is'provided, having a lower portion 2'? underlying the sheet of insulation, and end portions 28, engaging the ends of the receptacle body, and the attaching ears 31, extending from each end thereof, in the usual manner. This supporting yoke is secured to the receptacle body, independently of the means for supporting the contacts in position, by means of tongues 29, which are struck inwardly from the end portions 28 and engage recesses 30 formed in the end walls of the receptacle body.

It will be observed that the body of the receptacle is of comparatively simple construction and can be manufactured very cheaply, and that the contact strip is one which may be made out of sheet metal at a very low expense. The offset portion 21 is exposed through the side opening 15, and provides a place at which the wires can be connected to the contact strips with great facility.

I am aware that the particular construction disclosed in this specification may be varied considerably without departing from the spirit of my invention and, therefore, I claim my invention broadly as indicated by the appended claims.

What I claim is:

1. An attachment plug receptacle comprising a body of insulating material recessed from its lower face to provide a pair of longitudinally extending contact-receiving slots and pierced from its upper faCB t provide guideways Comm th 'portions bent to form blade-engaging contacts and ofisetneartheir centers to form terminal porthe end portions of such slots,.,the, walls of said body being cut away to form side 'openings'communicating with said slots near the "centers;

thereof, strips disposed on their edges in said slots with their end portions florming blade-engaging contacts and offset near their centers to formlterminal portions located in said side openings, terminal screws carried by said offset portions, and means for retaining said stripsin position in said -slots'.

- '2. An attachment plug receptacle comprising a 1 the end portions of such slots, the side walls of said body being cut away to form side openings communicating with said slots near the centers thereof and said body being recessed opposite saidside openings, strips disposed 'on'their edges in said slots with their end portions forming bladeengaging contacts and offset near their centers to form terminal portions located in said side openings, terminal screws carried by said offset portions and projecting into said recesses, and means for retaining said strips in position in said slots.

3'. An attachment plug receptacle comprising a body of insulating material recessed from its 'lower'face to provide a pair of longitudinally extending contact-receiving slots enlarged at opposite ends to form contact chambers, said bo'dy being pierced from its upper face to provide guideways communicating with said chambers, and the side walls of said body being cut away to form side openings communicating with said slots near the centers thereof, strips disposed on their edges in said slots with-their end portions forming blade-engaging contacts and offset near strips in position 'in said slots. r

4. An attachment plug receptaclecomp'rising a body of insulating material recessed from its lower face to provide a pair of longitudinally extending contact-receiving slots enlarged at opposite ends to form contact chambers, the upper face of said body being pierced to provide guideways communicating with said chambers, the side walls of said body being cut away to form side openings communicating with said slots near the, centers thereof, contact strips disposed on their edges in said slots and having their end tions'lo'cated in said side openings, terminal screws carriedlby said offset portions, 2. sheet of insulationlunderlying said body and closing said chambers, means forfastening said sheet to said body to support. said strips in position, a receptacle-supporting "yoke underlying said sheet of insulation, and means for securing said yoke to the body independently of the means for supporting said cont'aetsinposition;

5. An attachment plug receptacle comprising a body of -'insulating'mate rial,' metal-strips disposed on their edges inslots in said body andi having at their ends blade-engaging contacts, "the body being pierced from its face topro'vid'e'guidewa'ys through which attachment plug blades'*may'-pass to engage said contacts, the side 'walls offthe bodybeing cut away to form'side openings'ne'ar the center of the body, 'oneateach side ther'eof, the metal strips'having on thefiat side's-thereof offset portions near their centers lyingparai-lel with said slots to form terminal portions located in said side openings] and means to maintain'the contacts in the body. H I

6. A duplex attachment plug receptacle comprising an oblong body of insulating material having near each side wall a' longitudinally extending contact-receivin'g -sldt, said body being pierced from its upper face to provide guideways communicating; with theends of the contactreceiving'slots, metal strips-disposed on edges, one in each'of said slots, and'eachhav-ing bladeengagingcontacts on its ends located below said guideways, each-side wallbfthe body beingprovided with an opening through wliiclfa' -portion nfthe adjacent strip which is paralll with said t is Xn edand. ac e s {mm e fiidgdflihe body, terminal'sci'ews carrie'd b y' said exposed portionsj'of saidstrips and extending'transversely of the body and'means to in the bo'clyr, fQ V r, J GAYNOB.

maintain the contacts 

